CH 16 Mb: Question Preview (ID: 5634)

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Greenhouse gases include
a) carbon dioxide
b) water vapor
c) methane
d) all of the answers are correct

Data that support the theory that the Earth's average surface temperature is on the rise include
a) carbon dioxide levels are increasing
b) rise in sea level
c) temperature evidence in tree ring samples
d) all of the answers are correct

Climatologists estimate that the oceans absorbs about _% of the carbon dioxide released from burning fossil fuels
a) 10 to 20
b) 30 to 50
c) 50 to 80
d) 80 to 100

Possible effects of global warming inlcude
a) flooding coastal areas and island nations
b) loss of remaining coastal wetlands
c) slowing and alteration of ocean currents
d) all of the answers are correct

The Kyoto Climate Change Conference agreed to reduce carbon dioxide emissions to zero by 2012
a) true
b) false

Most likely, the only real solution to the global warming problem is
a) nuclear power
b) to stop using energy
c) to develop cost effective alternatives to fossil fuel
d) to find another planet to live on

The ozone layer is vital to life on Earth because
a) it supplies us with oxygen
b) it protects us from heavy rain
c) it breaks down CFCs
d) it protects us from ultraviolet radiation

Ultraviolet radiation is harmful because it
a) causes unchecked photosynthesis
b) damages DNA and protein
c) penetrates the aphotic zone
d) none of the answers are correct

The significance of the June 1990 international ban on ozone depleting chemicals is that it showed that the international community
a) saved the ozone layer
b) gave it a good try even though it did not work
c) can cooperate to solve global issues that threaten everyone
d) none of the answers are correct

The most common way that modern ships transplant non native species to new environments is by
a) allowing mascots to escape
b) loading and discharging ballast water
c) deliberately sabotaging the local environment
d) none of the above

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